METHOD FOR PRODUCING SECONDARY BATTERY

Organization Name

Inventor(s)

METHOD FOR PRODUCING SECONDARY BATTERY

This abstract first appeared for US patent application 18825574 titled 'METHOD FOR PRODUCING SECONDARY BATTERY

Original Abstract Submitted

To provide a method for producing a secondary battery, which is configured to suppress the occurrence of warpage of a current collector during the welding of the resin member to the current collector. A method for producing a secondary battery comprising a current collector comprising a first metal foil and a second metal foil and a resin member welded to a peripheral portion of the current collector, wherein the method comprises welding the resin member to the current collector that is arranged to be sandwiched by the resin member; wherein the first metal foil has a first linear expansion coefficient; wherein the second metal foil has a second linear expansion coefficient; wherein the first linear expansion coefficient is larger than the second linear expansion coefficient.